Sister, Sister is an American television sitcom starring Tia and Tamera Mowry as identical twin sisters separated at birth. It premiered on April 1, 1994, on ABC as part of its TGIF comedy lineup, and finished its run on The WB on May 23, 1999, airing 119 episodes over six seasons. The series was created by Kim Bass, Gary Gilbert, and Fred Shafferman, and produced by de Passe Entertainment.